Any hammer can drive nails but this one lets you pull them out easily with less effort and much faster - period. The unique design places some extractor claws just below the head, so you don't have to change your grip or flip the hammer over to grab the nail head. Just slide it into the special front claw and pull - with 8-to-1 leverage. You will be able to pull out deeply embedded nails from cured oak, hickory and other very tough hardwoods. A block of wood or a crowbar are things of the past. In addition, you can use that front claw to straighten studs and to set nails deeply. It's a remarkable tool.